Cutting board



FIG. 1 is an isometric view of a cutting board showing my new design;

FIG. 2 is a left side view which is substantially a mirror image of the right side view;

FIG. 3 is a rear elevation view;

FIG. 4 is a front elevation view;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view. 

The ornamental design for a cutting board, as shown and described. 